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I have a 13 GS and have been looking at performance packages from Lingenfelter. They want $11k for a base 600hp supercharger setup.
Are there other performance shops within a 100 mile radius of Detroit that offer similar packages I can use to compare and read reviews?
Thanks
Pretty sure that the e-force they install does not void the GM warranty, and why the extra money over some other shops.
As for having a E-force installs (1591/1575 is dry sump, the kit is $7K on amazon, and you can have a shop install it for under $2K. The down side, this will void your GM warranty depending on the shop that does the work.